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Abstract:
In many interactive scenarios, the fast recognition and localization
of crucial information is very important to effectively
perform a task. However, in information visualization the
visualization of permanently growing large data volumes often
leads to a simultaneously growing amount of presented
graphical primitives. Besides the fundamental problem of
limited screen space, the effective localization of single or
multiple items of interest by a user becomes more and more
difficult. Therefore, different approaches have been developed
to emphasize those items – mainly by manipulating the
items size, by suppressing the whole context or by adding
supplemental visual elements (e.g., contours, arrows). This
paper introduces the well known illustrative technique of
haloing to information visualization to address the localization
problem. Applying halos emphasizes items without a
manipulation of size or an introduction of additional visual
elements and reduces the context suppression to a locally
defined region. This paper also presents the results of a first
user-study to get an impression of the usefulness of halos for
a faster recognition.
In:
Proceedings of the Working Conference on Advanced Visual Interfaces (AVI'08), Naples, Italy, May 2008.
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